Helios Fans VDD 450/6 T120

The Helios VDD 450/6 T120 is a vertical discharge roof fan engineered for continuous airflow at temperatures up to 120°C, making it ideal for demanding environments such as kitchen exhaust systems in compliance with VDI 2052. The motor is located outside the airstream, preventing exposure to heated air and enhancing reliability.

Its casing is built from seawater-resistant aluminium with an integrated protective guard, ensuring long-lasting durability in aggressive conditions. The motor support and base plate, along with the inlet cone, are made of galvanized steel. The base plate is fitted with threaded bolts for the secure attachment of intake-side accessories, matching the DIN 24155 hole pattern (page 3). A bird guard is installed at the outlet side as standard, in accordance with DIN EN ISO 13857.

The fan incorporates a high-performance, backward-curved centrifugal impeller made from aluminium and is dynamically balanced to DIN ISO 1940 – 1 standards to ensure stable, vibration-free operation.

It is equipped with a speed-controllable, totally enclosed three-phase external rotor motor rated IP 54. This motor includes ball bearings with impregnated windings for maintenance-free use and features radio interference suppression for dependable performance in high-temperature applications.